diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index a9544b006f0b..116c5cb65fe4 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -293,19 +293,58 @@ static void rtw89_get_channel_params(struct cfg80211_chan_def *chandef,
 		break;
 	}
 
-	switch (center_chan) {
+	switch (band) {
 	default:
-	case 1 ... 14:
-		subband = RTW89_CH_2G;
+	case RTW89_BAND_2G:
+		switch (center_chan) {
+		default:
+		case 1 ... 14:
+			subband = RTW89_CH_2G;
+			break;
+		}
 		break;
-	case 36 ... 64:
-		subband = RTW89_CH_5G_BAND_1;
+	case RTW89_BAND_5G:
+		switch (center_chan) {
+		default:
+		case 36 ... 64:
+			subband = RTW89_CH_5G_BAND_1;
+			break;
+		case 100 ... 144:
+			subband = RTW89_CH_5G_BAND_3;
+			break;
+		case 149 ... 177:
+			subband = RTW89_CH_5G_BAND_4;
+			break;
+		}
 		break;
-	case 100 ... 144:
-		subband = RTW89_CH_5G_BAND_3;
-		break;
-	case 149 ... 177:
-		subband = RTW89_CH_5G_BAND_4;
+	case RTW89_BAND_6G:
+		switch (center_chan) {
+		default:
+		case 1 ... 29:
+			subband = RTW89_CH_6G_BAND_IDX0;
+			break;
+		case 33 ... 61:
+			subband = RTW89_CH_6G_BAND_IDX1;
+			break;
+		case 65 ... 93:
+			subband = RTW89_CH_6G_BAND_IDX2;
+			break;
+		case 97 ... 125:
+			subband = RTW89_CH_6G_BAND_IDX3;
+			break;
+		case 129 ... 157:
+			subband = RTW89_CH_6G_BAND_IDX4;
+			break;
+		case 161 ... 189:
+			subband = RTW89_CH_6G_BAND_IDX5;
+			break;
+		case 193 ... 221:
+			subband = RTW89_CH_6G_BAND_IDX6;
+			break;
+		case 225 ... 253:
+			subband = RTW89_CH_6G_BAND_IDX7;
+			break;
+		}
 		break;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index deb91f6b6737..c5d40777558e 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -61,6 +61,15 @@ enum rtw89_subband {
 	RTW89_CH_5G_BAND_3 = 3,
 	RTW89_CH_5G_BAND_4 = 4,
 
+	RTW89_CH_6G_BAND_IDX0, /* Low */
+	RTW89_CH_6G_BAND_IDX1, /* Low */
+	RTW89_CH_6G_BAND_IDX2, /* Mid */
+	RTW89_CH_6G_BAND_IDX3, /* Mid */
+	RTW89_CH_6G_BAND_IDX4, /* High */
+	RTW89_CH_6G_BAND_IDX5, /* High */
+	RTW89_CH_6G_BAND_IDX6, /* Ultra-high */
+	RTW89_CH_6G_BAND_IDX7, /* Ultra-high */
+
 	RTW89_SUBBAND_NR,
 };
 
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852a_rfk.c b/drivers/net/wireless/realtek/rtw89/rtw8852a_rfk.c
index aa326681b509..acdad5a300dd 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852a_rfk.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852a_rfk.c
@@ -2917,6 +2917,7 @@ static void _tssi_set_tmeter_tbl(struct rtw89_dev *rtwdev, enum rtw89_phy_idx ph
 	u8 i, j;
 
 	switch (subband) {
+	default:
 	case RTW89_CH_2G:
 		thm_up_a = rtw89_8852a_trk_cfg.delta_swingidx_2ga_p;
 		thm_down_a = rtw89_8852a_trk_cfg.delta_swingidx_2ga_n;
@@ -3101,6 +3102,7 @@ static void _tssi_pak(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 	u8 subband = rtwdev->hal.current_subband;
 
 	switch (subband) {
+	default:
 	case RTW89_CH_2G:
 		rtw89_rfk_parser_by_cond(rtwdev, path == RF_PATH_A,
 					 &rtw8852a_tssi_pak_defs_a_2g_tbl,